5c7dd7acc3
repo: https://github.com/T-head-Semi/linux commit: b1313fe517ca3703119dcc99ef3bbf75ab42bcfb Change-Id: I6cbb35294024ea3a66140e311f4bb705fd7fd626
56 lines
1.6 KiB
C
56 lines
1.6 KiB
C
/* SPDX-License-Identifier: GPL-2.0 */
|
|
#ifndef _LINUX_KERNEL_READ_FILE_H
|
|
#define _LINUX_KERNEL_READ_FILE_H
|
|
|
|
#include <linux/file.h>
|
|
#include <linux/types.h>
|
|
|
|
/* This is a list of *what* is being read, not *how* nor *where*. */
|
|
#define __kernel_read_file_id(id) \
|
|
id(UNKNOWN, unknown) \
|
|
id(FIRMWARE, firmware) \
|
|
id(MODULE, kernel-module) \
|
|
id(KEXEC_IMAGE, kexec-image) \
|
|
id(KEXEC_INITRAMFS, kexec-initramfs) \
|
|
id(POLICY, security-policy) \
|
|
id(X509_CERTIFICATE, x509-certificate) \
|
|
id(MAX_ID, )
|
|
|
|
#define __fid_enumify(ENUM, dummy) READING_ ## ENUM,
|
|
#define __fid_stringify(dummy, str) #str,
|
|
|
|
enum kernel_read_file_id {
|
|
__kernel_read_file_id(__fid_enumify)
|
|
};
|
|
|
|
static const char * const kernel_read_file_str[] = {
|
|
__kernel_read_file_id(__fid_stringify)
|
|
};
|
|
|
|
static inline const char *kernel_read_file_id_str(enum kernel_read_file_id id)
|
|
{
|
|
if ((unsigned int)id >= READING_MAX_ID)
|
|
return kernel_read_file_str[READING_UNKNOWN];
|
|
|
|
return kernel_read_file_str[id];
|
|
}
|
|
|
|
int kernel_read_file(struct file *file, loff_t offset,
|
|
void **buf, size_t buf_size,
|
|
size_t *file_size,
|
|
enum kernel_read_file_id id);
|
|
int kernel_read_file_from_path(const char *path, loff_t offset,
|
|
void **buf, size_t buf_size,
|
|
size_t *file_size,
|
|
enum kernel_read_file_id id);
|
|
int kernel_read_file_from_path_initns(const char *path, loff_t offset,
|
|
void **buf, size_t buf_size,
|
|
size_t *file_size,
|
|
enum kernel_read_file_id id);
|
|
int kernel_read_file_from_fd(int fd, loff_t offset,
|
|
void **buf, size_t buf_size,
|
|
size_t *file_size,
|
|
enum kernel_read_file_id id);
|
|
|
|
#endif /* _LINUX_KERNEL_READ_FILE_H */
|